72 lines
1.6 KiB
Ruby
72 lines
1.6 KiB
Ruby
module Banzai
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module Filter
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class BlockquoteFenceFilter < HTML::Pipeline::TextFilter
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REGEX = %r{
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(?<code>
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# Code blocks:
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# ```
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# Anything, including `>>>` blocks which are ignored by this filter
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# ```
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^```
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.+?
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\n```$
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)
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(?<html>
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# HTML block:
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# <tag>
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# Anything, including `>>>` blocks which are ignored by this filter
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# </tag>
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^<[^>]+?>\n
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.+?
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\n<\/[^>]+?>$
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)
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(?:
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# Blockquote:
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# >>>
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# Anything, including code and HTML blocks
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# >>>
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^>>>\n
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(?<quote>
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(?:
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# Any character that doesn't introduce a code or HTML block
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(?!
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^```
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^<[^>]+?>\n
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)
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.
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# A code block
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\g<code>
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# An HTML block
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\g<html>
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)+?
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)
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\n>>>$
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)
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}mx.freeze
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def initialize(text, context = nil, result = nil)
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super text, context, result
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@text = @text.delete("\r")
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end
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def call
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@text.gsub(REGEX) do
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if $~[:quote]
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$~[:quote].gsub(/^/, "> ").gsub(/^> $/, ">")
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else
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$~[0]
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end
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end
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end
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end
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end
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end
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